DS

David K. Schmalzer

TM The Pittsburg & Midway Coal Mining: 3 patents #1 of 22Top 5%
📍 Englewood, CO: #262 of 810 inventorsTop 35%
🗺 Colorado: #13,156 of 40,980 inventorsTop 35%
Overall (All Time): #1,684,515 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4364817 Method for controlling boiling point distribution of coal liquefaction oil product Raymond P. Anderson, Charles H. Wright 1982-12-21
4330388 Short residence time coal liquefaction process including catalytic hydrogenation Raymond P. Anderson, Charles H. Wright 1982-05-18
4328088 Controlled short residence time coal liquefaction process Raymond P. Anderson, Charles H. Wright 1982-05-04